package com.rondhuit.uima.yahoo;

/**
 * Copyright 2011 RONDHUIT Co.,Ltd.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *    http://www.apache.org/licenses/LICENSE-2.0
 *    
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import org.apache.uima.jcas.JCas;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class KeyphraseResultHandler extends DefaultHandler {

  private final JCas jcas;
  private boolean enableKeyphrase = false;
  
  public KeyphraseResultHandler(JCas aJCas){
    jcas = aJCas;
  }

  @Override
  public void startElement(String uri, String localName, String qName,
      Attributes attributes) throws SAXException {
    if(qName.equals("Keyphrase")) {
      enableKeyphrase = true;
    }
  }

  @Override
  public void characters(char[] ch, int start, int length) throws SAXException {
    if(enableKeyphrase) {
      Keyphrase annotation = new Keyphrase(jcas);
      annotation.setKeyphrase(new String(ch, start, length));
      annotation.addToIndexes();
      enableKeyphrase = false;
    }
  }
}
